19745310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 51492672

約数和(自身を除く): 31747362

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 197, 257, 390, 394, 514, 591, 771, 985, 1182, 1285, 1542, 1970, 2561, 2570, 2955, 3341, 3855, 5122, 5910, 6682, 7683, 7710, 10023, 12805, 15366, 16705, 20046, 25610, 33410, 38415, 50115, 50629, 76830, 100230, 101258, 151887, 253145, 303774, 506290, 658177, 759435, 1316354, 1518870, 1974531, 3290885, 3949062, 6581770, 9872655, 19745310]

約数ペア:

[(1, 19745310), (2, 9872655), (3, 6581770), (5, 3949062), (6, 3290885), (10, 1974531), (13, 1518870), (15, 1316354), (26, 759435), (30, 658177), (39, 506290), (65, 303774), (78, 253145), (130, 151887), (195, 101258), (197, 100230), (257, 76830), (390, 50629), (394, 50115), (514, 38415), (591, 33410), (771, 25610), (985, 20046), (1182, 16705), (1285, 15366), (1542, 12805), (1970, 10023), (2561, 7710), (2570, 7683), (2955, 6682), (3341, 5910), (3855, 5122)]